IDBI Bank — Please solve the problem

Sir/Mam
My name is Arpita Singh .I am trying to download my admit card for the idbi executive exam which is scheduled for 9 July but the website show invalid credential even if i enter the valid registration no. And password...
At the time of fee submission my fee is submitted successfully. So please try to solve this problem as soon as possible.
Registration No[protected]
Password LKPYD865
Date of birth 13_10_98